Submission

Score: 100

User: Winkrittapas2550gmail.com

Problemset: ขนมของเซ้น143 (v.ยาก)

Language: cpp

Time: 0.002 second

Submitted On: 2024-09-27 16:12:24

#include<bits/stdc++.h>
using namespace std;
int main(){
	long long int i,n,m,sum=0,dif=0,ans;
	cin >> n ;
	sum =(n*(n+1))/2 ;
	m=sqrt(sum);
	dif =(m*(m+1))/2 ;
	ans = sum-dif*2;	
	cout << abs(ans) ;
}